Dermoscopic Characteristics of Other Diagnoses, Including Skin Infections and Infestations
| Diagnosis (Level 1 or 2) Feature included as a learning objective (>70% positive responses) | Round 1: % Positive Responses* (n = 33) | Round 2: % Positive Responses* (n = 30) |
|---|---|---|
| Verruca (level 1) | ||
| Papilliform structures | 93.9% | — |
| Tiny red-black dots (papillary capillaries) | 90.9% | — |
| Scabies (level 1) | ||
| Delta-wing jet with contrail sign (small dark brown triangular structure located at the end of whitish structureless curved/wavy lines) | 90.9% | — |
| Molluscum contagiosum (level 2) | ||
| Central pore or umbilication | 93.9% | — |
| Polylobular white-yellow amorphous structures | 81.8% | — |
| Linear or branched vessels (red corona)/crown vessels | 63.6% | ↓ 63.3% |
| Radiation tattoo (level 2) | ||
| Homogenous blue or black coloration | 84.8% | — |
| Scars (level 2) | ||
| White depigmentation | 72.7% | — |
| Venous lake (level 2) | ||
| Homogenous purple/blue/red coloration ± globules/clods | 93.9% | — |
| Psoriasis (level 2) | ||
| Red or pink color with white scales/light-red background | 75.8% | — |
| Dotted vessels in a regular distribution | 72.7% | — |
↵* % of panelists who indicated on a 5-point Likert scale that they “strongly agree” (5) or “agree” (4) with the feature being included in dermoscopy training for primary care providers.